Evelyn Laye
Madame Irela (Maggie O'Neil)
Fritz Kortner
Arthur Kober
Emlyn Williams
George Leary
Carl Esmond
Count Ehrenburg / Archduke Theodore
Alice Delysia
Madame Valmond
Conchita Supervia
Baba L'Etoile
Muriel Aked
Tremlowe
Dennis Val Norton
Sovino
Browning Mummery
Solo Tenor / Alfredo the Gondolier
Frederick Leister
Emperor FranzJosef
Alec Guinness
W.W.I. soldier in concert audience (uncredited)
George Treger
Solo gypsy violinist
Neville Brook
Minor Role